参数资料
型号: W137H
英文描述: CPU System Clock Generator
中文描述: CPU系统时钟发生器
文件页数: 11/13页
文件大小: 141K
代理商: W137H
W147G
PRELIMINARY
Document #: 38-07165 Rev. *A
Page 11 of 13
Intel is a registered trademark of Intel Corporation.
Group Skew and Jitter Limits
Output Group
CPU
SDRAM
APIC
48MHz
3V66
PCI
REF
Pin-Pin Skew Max
175 ps
250 ps
250 ps
250 ps
175 ps
500 ps
N/A
Cycle-Cycle Jitter
250 ps
250 ps
500 ps
500 ps
500 ps
500 ps
1000 ps
Duty Cycle
45/55
45/55
45/55
45/55
45/55
45/55
45/55
Nom Vdd
2.5V
3.3V
2.5V
3.3V
3.3V
3.3V
3.3V
Skew, Jitter
Measure Point
1.25V
1.5V
1.25V
1.5V
1.5V
1.5V
1.5V
Clock Output Wave
2.5V Clocking
Interface
3.3V Clocking
Interface
Test Point
Test Load
T
PERIOD
Duty Cycle
T
HIGH
2.0
1.25
0.4
T
LOW
T
RISE
T
FALL
T
LOW
T
RISE
T
FALL
T
PERIOD
Duty Cycle
T
HIGH
2.4
1.5
0.4
Output
Buffer
Figure 8. Output Buffer
Ordering Information
Ordering Code
W147G
Package
Name
H
Package Type
56-pin SSOP (300 mils)
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